One-neutron stripping process between 6Li and 209Bi was studied at 28, 30, and 34 MeV using the in-beam γ-ray spectroscopy method. The γ–γ coincident analysis clearly identified two γ-rays feeding the ground and long-lived isomeric states, which were employed to determine the cross section. The one-neutron stripping cross sections were similar to the cross sections of complete fusion in the 6Li+209Bi system, but the one-neutron stripping cross sections decreased more gradually at the sub-barrier region. A coupled-reaction-channel calculation was performed to study the detailed reaction mechanism of the one-neutron stripping process in 6Li. The calculations indicated that the first excited state of 5Li is critical in the actual one-neutron transfer mechanism, and the valence proton of 209Bi can be excited to the low-lying excited state in (6Li,5Li) reaction, unlike in the (d,p) reaction.
One-neutron stripping process in the 209Bi(6Li, 5Li)210Bi* reaction reaction / Zhang, G.-L., Jiao, Z.-W., Zhang, G.-X., Cardozo, E.N., Paes, B., Hu, S.-P., Qian, J.-Q., Mengoni, D., Qu, W.-W., Li, C.-B., Zheng, Y., Zhang, H.-Q., Sun, H.-B., Wang, N., Zhang, C.-L., Valiente-Dobon, J.J., Testov, D., Mazzocco, M., Gozzelino, A., Parascandolo, C., et al.. - In: NUCLEAR SCIENCE AND TECHNIQUES. - ISSN 1001-8042. - 35:6(2024). [10.1007/s41365-024-01462-w]
One-neutron stripping process in the 209Bi(6Li, 5Li)210Bi* reaction reaction
Parascandolo C.;La Commara M.;
2024
Abstract
One-neutron stripping process between 6Li and 209Bi was studied at 28, 30, and 34 MeV using the in-beam γ-ray spectroscopy method. The γ–γ coincident analysis clearly identified two γ-rays feeding the ground and long-lived isomeric states, which were employed to determine the cross section. The one-neutron stripping cross sections were similar to the cross sections of complete fusion in the 6Li+209Bi system, but the one-neutron stripping cross sections decreased more gradually at the sub-barrier region. A coupled-reaction-channel calculation was performed to study the detailed reaction mechanism of the one-neutron stripping process in 6Li. The calculations indicated that the first excited state of 5Li is critical in the actual one-neutron transfer mechanism, and the valence proton of 209Bi can be excited to the low-lying excited state in (6Li,5Li) reaction, unlike in the (d,p) reaction.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
